NOTE: please use the "Bug reports" thread for reporting any issues you encounter.

If the game launches with a bluescreen error message (possibly with lots of ???s), please try the following two potential fixes. If neither fix works, please contact FAKKU support at the following link:
https://www.fakku.net/contact

Method 1:

1. Open Windows Control Panel
2. Select Region
3. In Region settings, select the Administrative tab
4. Click Change system locale
5. If enabled, uncheck the "Beta: Use Unicode UTF-8 for worldwide language support" option
6. If this doesn't work, try changing your current system locale to Japanese

Method 2:

1. Ensure that your antivirus software is not blocking the game from running if you use one
2. In addition, open St. Yariman's Little Black Book ~Complete~'s install folder
3. Right click styariman.exe and select Run as Administrator